How much heat is required to raise the temperature of 2.00 moles of an ideal monatomic gas by 10 C° at constant volume? (R = 8.31 J/mol ? K)
A) 249 J
B) 416 J
C) 208 J
D) 200 J
E) 125 J
A
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The electric field has a magnitude of 3.00 N/m at a distance of 60.0 cm from a point charge. What is the charge?
A. 1.40 nC B. 120 pC C. 36.0 mC D. 12.0 ?C E. 3.00 nC
A pilot drops a package from a plane flying horizontally at a constant speed. Neglecting air resistance, when the package hits the ground the horizontal location of the plane will
A) be behind the package. B) be over the package. C) be in front of the package. D) depend of the speed of the plane when the package was released.
In nuclear power plants, the nuclear energy is used to make steam which is then used to produce electricity
Indicate whether the statement is true or false
Which is higher in an endothermic reaction: the potential energy of the reactants or the potential energy of the products?
A) The potential energy of the products is higher than the potential energy of the reactants. B) The potential energy of the reactants is higher than the potential energy of the products. C) The potential energy of the reactants is the same as the potential energy of the products. D) In the early stages of the reaction the potential energy of the reactants is higher. In the later stages, the potential energy of the products is higher.